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Polysiphonia brodiei (Dillwyn) Sprengel

Classification:
Empire Eukaryota
Kingdom Plantae
Subkingdom Biliphyta
Phylum Rhodophyta
Subphylum Eurhodophytina
Class Florideophyceae
Subclass Rhodymeniophycidae
Order Ceramiales
Family Rhodomelaceae
Tribe Polysiphonieae
Genus Polysiphonia

Pictures

click on thumbnail for larger version.

Polysiphonia brodiei (Dillwyn) Sprengel
microscope, North of Portugal, Vilachá, 2006. Ignacio Bárbara. © Ignacio Bárbara (barbara@udc.es).

Polysiphonia brodiei (Dillwyn) Sprengel
microscope, TS frond showing central axial cell, 8 pericentrals, and cortication; Spain, Galicia, Ría de Betanzos, 2007. Ignacio Bárbara. © Ignacio Bárbara (barbara@udc.es).

Polysiphonia brodiei (Dillwyn) Sprengel
microscope, Spain, Galicia, Ría de Betanzos, 2007. Ignacio Bárbara. © Ignacio Bárbara (barbara@udc.es).

Polysiphonia brodiei (Dillwyn) Sprengel
microscope, Spain, Galicia, A Coruña, Lorbé; tetrasporangial stichidia. Ignacio Bárbara. © Ignacio Bárbara (barbara@udc.es).

Polysiphonia brodiei (Dillwyn) Sprengel
microscope, Spain, Galicia, A Coruña, Lorbé. Ignacio Bárbara. © Ignacio Bárbara (barbara@udc.es).

Polysiphonia brodiei (Dillwyn) Sprengel
Kilkee, Co. Clare, Ireland; mid-shore rock pools. 25 Mar 2005. Michael Guiry. © Michael Guiry (mike.guiry@nuigalway.ie).

 

Polysiphonia brodiei (Dillwyn) Sprengel Kilkee, Co. Clare, Ireland; mid-shore rock pools
© Michael Guiry (mike.guiry@nuigalway.ie)

Publication details
Polysiphonia brodiei (Dillwyn) Sprengel 1827: 349 (as 'brodiaei' )

Published in: Sprengel, K.[P.J.] (1827). Systema vegetabilium Editio decima sexta. Voluminis IV. Pars I. Classis 24. Vol. 4 pp. [i]-iv, [1]-592. Gottingae [Göttingen]: sumtibus Librariae Dieterichianae.
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Type species
The type species (holotype) of the genus Polysiphonia is Polysiphonia urceolata (Lightfoot ex Dillwyn) Greville.

Status of name
This name is currently regarded as a synonym of Leptosiphonia brodiei (Dillwyn) A.M.Savoie & G.W.Saunders

Basionym
Conferva brodiei Dillwyn

Type information
Lectotype locality: Bantry Bay, (Co. Cork,) Ireland (Silva, Basson & Moe 1996: 537). Lectotype: Miss Ellen Hutchins; 24.vi.1807; BM-K (Maggs & Hommersand 1993: 314). Notes: This type locality was first recorded by Womersley (1979: 497).

Eponomy
Named for James Brodie, Scottish Naturalist; generally misspelled “brodiaei”.

Homotypic Synonym(s)
Grammita brodiei (Dillwyn) Bonnemaison 1828
Polyochetum brodiei (Dillwyn) Chevallier 1836
Polyostea brodiei (Dillwyn) Ruprecht 1850

Nomenclatural notes
Originally and generally misspelled as “brodiaei”; see Silva, Basson & Moe (1996: 537). Although Hollenberg (1944: 477) gave Scotland as the type locality, the figures (Dillwyn 1809, pl. 107) accompanying the original description are based on material collected by Miss Ellen Hutchins at Bantry Bay, Co. Cork, Ireland (see Womersley, 1979: 497). See Silva, Basson & Moe (1996) regarding orthography of the specific epithet (Guiry, 1997).

General environment
This is a marine species.

Common names

(as Polysiphonia brodiei (Dillwyn) Sprengel)
English: Brodie's Siphon Weed (Bunker et al. 2010).

Description
Cartilaginous, cylindrical, tufted, dark purple-red fronds, to 300 mm long, from small conical basal disc. Branches irregular to pseudodichotomous, densely clothed with short, slender, much-divided branchlets, forming the distinct tufts characteristic of this species. Central siphon of main axes with 6-8 primary pericentral siphons and as many alternating secondary pericentral siphons, surrounded by small corticating cells. Branchlets ecorticate, with fewer pericentral siphons, articulations about as long as broad.

Habitat
On rocks, stones, shells and corallines, mid-intertidal pools to subtidal, especially on exposed shores, generally distributed, common. According to Womersley (2003: 205), this species is usually found in or near harbour areas and may be spreading.

Detailed distribution with sources (Click to Load)

Source of current name
Savoie, A.M. & Saunders, G.W. (2018 '2019'). A molecular assessment of species diversity and generic boundaries in the red algal tribes Polysiphonieae and Streblocladieae (Rhodomelaceae, Rhodophyta) in Canada. European Journal of Phycology 54(1): 1-25.

Key references
Athanasiadis, A. (2016). Phycologia Europaea Rhodophyta Vol. II. pp. [2], 763-1504. Thessaloniki: Published and distributed by the author.

Diaz-Tapia, P., Kim, M.S., Secilla, A., Bárbara, I. & Cremades, J. (2013). Taxonomic reassessment of Polysiphonia foetidissima (Rhodomelaceae, Rhodophyta) and similar species, including P. schneideri, a newly introduced species in Europe. European Journal of Phycology 48(4): 345-362.

Loiseaux-de Goër, S. & Noailles, M.-C. (2008). Algues de Roscoff. pp. [1]-215, col. figs. Roscoff: Editions de la Station Biologique de Roscoff.

Maggs, C.A. & Hommersand, M.H. (1993). Seaweeds of the British Isles. Volume 1. Rhodophyta. Part 3A. Ceramiales. pp. [i]-xv, 1-444, 129 figs, map. London: HMSO.

Mathieson, A.C. & Dawes, C.J. (2017). Seaweeds of the Northwest Atlantic. pp. [i]-x, 1-798, CIX pls. Amherst & Boston: University of Massachusetts Press.

Nam, K.W. & Kang, P.J. (2012). Algal flora of Korea. Volume 4, Number 4. Rhodophyta: Ceramiales: Rhodomelaceae: 18 genera including Herposiphonia. pp. [1-6], 1-178, figs 1-102. Incheon: National Institute of Biological Resources.

Smith, G.M. (1944). Marine algae of the Monterey Peninsula. pp. i-ix, 1-622, 98 pls. Stanford: Stanford University Press.

Womersley, H.B.S. (2003). The marine benthic flora of southern Australia - Part IIID Ceramiales - Delesseriaceae, Sarcomeniaceae, Rhodomelaceae. pp. [1]-533. Canberra & Adelaide: Australian Biological Resources Study & State Herbarium of South Australia.

Zinova, A.D. (1967). Opredelitel zelenikh, burikh i krasnich odoroslei juzhnikh morei SSSR [Guide to the green, brown and red algae of the southern seas of USSR]. pp. 1-398. Moscow, Leningrad: Academia Nauk. [in Russian]

Created: 31 March 1996 by M.D. Guiry

Verified by: 08 March 2019 by Wendy Guiry

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Wendy Guiry in Guiry, M.D. & Guiry, G.M. 2019. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 17 June 2019.

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